eighth-note flags

On eighth note that are not part of a beamed group e.g. a single eighth note off of the beat, the "flags" are clear and readily readable on all stem - down eighths. However, [and this is my problem] on those eighth notes where the stem is upward from the note head the flag is so horizontally collapsed that it appears as though the stem is just a bit wavy. No one could be expected to read this note effectively at tempo. The professional musician expects all notation to be clear and unambiguous. I need a way to set the note-style so that the flags on upward stem eighths appear like those on downward-stemmed eighths and I have not found that option in any of the menu options or the handbook. How can this problem be fixed?

I am using Musescore 1.2 on ubuntu 12.4 studio - 64 bit, linux kernel 3.2.0.32.